Medicine administering device for nasal cavities

Abstract

A capsule holder 2 of a medicine administering device 1 for nasal cavities comprises a movable member 8 which is axially movable, and a fixed member 3, in which the movable member 8 is formed at its outer periphery with an external thread 8D which is to be threadedly engaged with an internal thread 19C of a medicine spraying section 19. An air inflow hole H is formed by a perforating end 27A of a pin 27 when a capsule K is thrust into a one-side capsule hole 11, while the movable member 8 is raised so that the perforating end 27A is extracted from the air inflow hole H1 when the capsule holder 2 and the medicine spraying section 19 are incorporated with each other. An air outflow hole H2 is formed by a pin 28. A perforating tool is housed in the medicine administering device 1, in which a hole formation action for the air inflow hole H1 is also made during installation of the capsule K. The whole body can be made compact since the longitudinal dimension of the pin 27, 28 is decreased while the outer peripheral surface of the capsule holder 2 is covered with a pump section 15.

We claim: 
     
       1. A medicine administering device for nasal cavities, comprising: a capsule holder including a fixed member and a movable member which is slidably fitted in and axially movable relative to said fixed member, said movable member including a first threaded portion;   a pump section mounted to said fixed member of said capsule holder to supply air toward said capsule holder;   a medicine spraying section including a second threaded portion for threaded engagement with said first threaded portion of said movable member of said capsule holder, said medicine spraying section having a medicine passage with a spraying hole tip so as to spray medicine within a capsule into a nasal cavity of a patient under the influence of air supplied from said pump section;   a first perforator mounted in said fixed member for insertion into an end of the capsule; and   a second perforator mounted in said spraying section for insertion into an opposite end of the capsule;   wherein said movable member is movable in a direction away from said first perforator during threaded engagement of said spraying section and said movable member, thereby retracting said first perforator from the capsule.   
     
     
       2. A medicine administering device for nasal cavities, as claimed in claim 1, wherein the medicine passage is bifurcated to form two portions, each portion having a tip end that serves as a separate spraying hole. 
     
     
       3. A medicine administering device for nasal cavities, as claimed in claim 1, wherein said capsule holder is located on a side of said device that includes said pump section prior to attachment of said capsule holder and said medicine spraying section to each other, and said capsule holder is located on a side of said medicine spraying section after said medicine spraying section is threadedly engaged to said movable member. 
     
     
       4. A medicine administering device for nasal cavities, as claimed in claim 1, wherein said pump section is disposed to cover an outer peripheral side of said fixed member of said capsule holder. 
     
     
       5. A medicine administering device for nasal cavities, as claimed in claim 1, wherein said capsule holder includes a medicine trapping section for trapping the medicine to drop to a side of device that includes said pump section. 
     
     
       6. A medicine administering device for nasal cavities, as claimed in claim 2, wherein said capsule holder is located on a side of said device that includes said pump section prior to attachment of said capsule holder and said medicine spraying section to each other, and said capsule holder is located on a side of said medicine spraying section after said medicine spraying section is threadedly engaged to said movable member. 
     
     
       7. A medicine administering device for nasal cavities, as claimed in claim 2, wherein said pump section is disposed to cover an outer peripheral side of said fixed member of said capsule holder. 
     
     
       8. A medicine administering device for nasal cavities, as claimed in claim 3, wherein said pump section is disposed to cover an outer peripheral side of said fixed member of said capsule holder. 
     
     
       9. A medicine administering device for nasal cavities, as claimed in claim 2, wherein said capsule holder includes a medicine trapping section for trapping the medicine to drop to a side of device that includes said pump section. 
     
     
       10. A medicine administering device for nasal cavities, as claimed in claim 3, wherein said capsule holder includes a medicine trapping section for trapping the medicine to drop to a side of device that includes said pump section. 
     
     
       11. A medicine administering device for nasal cavities, as claimed in claim 4, wherein said capsule holder includes a medicine trapping section for trapping the medicine to drop to a side of device that includes said pump section. 
     
     
       12. A medicine administering device for nasal cavities, comprising: a capsule holder including a fixed member, a movable member which is slidably fitted in and axially movable relative to said fixed member, and a hole for holding a medicine capsule, said movable member including a first threaded portion;   a pump section mounted to said fixed member of said capsule holder to supply air toward said capsule holder;   a medicine spraying section including a second threaded portion for threaded engagement with said first threaded portion on said movable member, said medicine spraying section having a first medicine passage whose tip end serves as a first spraying hole, and a second medicine passage whose tip end serves as a second spraying hole, a generally Y-shaped medicine passage connected with said first and second medicine passages, and a third passage portion connected with said hole of said capsule holder;   a first perforator pin mounted in said fixed member for insertion into an end of a capsule; and   a second perforator mounted in said spraying section for insertion into an opposite end of the capsule, said second perforator being insertable through said third passage portion of said medicine spraying section into the capsule;   wherein said movable member is movable in a direction away from said first perforator during threaded engagement of said spraying section and said movable member, thereby retracting said first perforator from the capsule.